RHS 180x120x11.1 Açotubo · Weight & Dimensions

Açotubo, cold-formed sections · Rectangular Hollow Section

Rectangular Hollow Sections (RHS) are tubular profiles with excellent torsional resistance and aesthetic appeal. Used for columns, trusses, and exposed structural elements.

Also known as: PTR 180x120 (México) · Caño estructural 180x120 (Argentina)

The RHS 180x120x11.1 steel profile weighs 45.9 kg/m (30.86 lb/ft), has a depth of 180 mm (7.09 in), flange width 120 mm (4.72 in). Cross-sectional area: 5,849.867 mm². Moment of inertia Ix = 2,384.702 cm⁴, Iy = 1,255.831 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	180 mm	7.09 in
Width (b)	120 mm	4.72 in
Thickness (t)	11.1 mm	0.44 in
Fillet radius (r)	22.2 mm	0.87 in
Weight	45.9 kg/m	30.86 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,849.87 mm²	9.067 in²
Moment of inertia (Ix)	2,384.7 cm⁴	57.29 in⁴
Moment of inertia (Iy)	1,255.83 cm⁴	30.17 in⁴
Elastic section modulus (Sx)	264.97 cm³	16.169 in³
Elastic section modulus (Sy)	209.31 cm³	12.773 in³
Plastic section modulus (Zx)	335.28 cm³	20.460 in³
Plastic section modulus (Zy)	252.29 cm³	15.396 in³
Radius of gyration (rx)	6.38 cm	2.514 in
Radius of gyration (ry)	4.63 cm	1.824 in